WG4600 Flowchart Dead End

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Trying to get a wg4605 going. Following the flowchart (thanks, Randy and those who pointed me to it), I start with a blank screen, fuse601 tests good, regulated power supply tested +132V, which is a little high, but I assume is okay, turned up screen control and got nothing. At this pint, the flowchart points to "NO" for the heater glowing, but I have a glow. There doesn't appear to be an option for that. I replaced Q201 and 202 just for fun, but still nothing. Does anyone have any ideas where to go from here? I have interface board p307 if that helps.
 
Trying to get a wg4605 going. Following the flowchart (thanks, Randy and those who pointed me to it), I start with a blank screen, fuse601 tests good, regulated power supply tested +132V, which is a little high, but I assume is okay, turned up screen control and got nothing. At this pint, the flowchart points to "NO" for the heater glowing, but I have a glow. There doesn't appear to be an option for that. I replaced Q201 and 202 just for fun, but still nothing. Does anyone have any ideas where to go from here? I have interface board p307 if that helps.

Did you look into the blackness level pot on the input board? Those can go bad causing a dark screen
 
Keep I'm mind what flyback do they supply secondary voltages

all at the same time.

So I would expect High voltage, Screen voltage focus voltage

Heater voltage, vertical voltage, video B+ to each gun?

Can you find any of these with voltage.


If you have heater glow then your fly is working and you should have

the secondary voltages if you check the test points.

But if low heater voltage you won't see the master screen adjustment change.


so what is your heater voltage???

If you turn up the screen voltage up, it over rides any misadjusted BL pot.


so you should see a real bright raster with it turned , as you know.


https://www.arcade-museum.com/manua...4600 19k4625 19k4675 19k4676 19k4677 19in.pdf
 
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